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In homes across Merrimack, a familiar challenge arises: maintaining a comfortable and energy-efficient living space. At A and C Mechanical LLC, we…
The Best HVAC Company in Merrimack
Compare top-rated hvac providers in Merrimack. Profiles include verified reviews, service details, and direct contact options.
Service providers
HVAC pros near Merrimack
These companies are based in nearby cities and serve Merrimack.
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In Litchfield, we are Advanced Quality Air - your reliable HVAC specialists. For years, we've been delivering exceptional HVAC services to local h…
From $50
Up to $500
Closed until Mon, 7:00 AM
In Litchfield, we are Jolt Electric & HVAC - your dedicated team for all home comfort needs. We specialize in HVAC services, including heating and…
From $50
Up to $500
Open 24/7
In homes across Bedford, a chilly draft or a sweltering heatwave can disrupt comfort and peace. But worry not; we're New Hampshire Mechanical, you…
From $50
Up to $500
Closed until Mon, 8:00 AM
In Amherst, we are BILL WENZEL HEATING & AIR CONDITIONING, INC., a dedicated HVAC specialist committed to homeowners like you. We've established o…
From $50
Up to $500
Open 24/7
At Precision Temperature Control in Bedford, we specialize in HVAC services, offering solutions tailored to your home's unique climate needs. As a…
From $50
Up to $500
Closed until Mon, 8:00 AM
In the heart of Bedford, we, Glenn Hampoian Heating & Air Conditioning, Inc., are your dedicated partners for all HVAC needs. Our expertise spans …
From $50
Up to $500
Closed until Mon, 7:00 AM
In the heart of Bedford, we are Eric Potvin Custom Sheet Metalwork – your dedicated HVAC specialists. For years, we've been servicing local homeow…
From $50
Up to $500
Closed until Mon, 8:00 AM
In the heart of Nashua, we are Dane Heating and Cooling – your dedicated HVAC specialists. For years, we've been committed to delivering exception…
From $50
Up to $500
Open 24/7
At Ferris Plumbing, Heating & Cooling in Amherst, we specialize in comprehensive HVAC services. Our expertise spans across heating and air conditi…
From $50
Up to $500
Closed until Mon, 12:00 AM
At Mass Mechanical Co Inc in Bedford, we specialize as HVAC professionals, delivering exceptional air conditioning and heating solutions. Our team…
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Verified HVAC in Merrimack, NH
We show only active businesses that pass moderation. Results are specific to Merrimack and nearby service areas, and inactive profiles are removed to keep the list current.
Real reviews for hvac
Ratings and reviews come from customers who used the service. Compare hvac pros in Merrimack by experience, responsiveness, and value before you reach out.
Local-first search in Merrimack
Filter by neighborhood, check locations on the map, and find providers close to home or work in Merrimack. Listings are refreshed regularly — October 2026.
Within reach of Merrimack, NH
The same listings in the closest cities — providers there often take jobs in Merrimack too. Mileage is the approximate distance from Merrimack.
- Litchfield 1.6 mi
- Bedford 3.0 mi
- Amherst 4.6 mi
- Nashua 5.1 mi
- Manchester 6.0 mi
- Londonderry 7.0 mi
- Hudson 7.9 mi
- Derry 8.2 mi
- Milford 8.2 mi
- Auburn 9.5 mi
- Brookline 9.5 mi
- Hooksett 12.1 mi
Working with pros in Merrimack
Looking for hvac in Merrimack? This page lists verified local providers with ratings, reviews, and contact options. We show active businesses only — profiles are moderated and updated by owners.
Compare pros by experience, price range, and customer feedback. Many providers offer free estimates or same-day service for common requests. Use filters and the map to find someone close to your address.
Before you hire
- Read the most recent reviews for your specific type of job.
- Ask about licensing and insurance when required for this trade.
- Get a written estimate for work over a few hundred dollars.
- Confirm availability and any trip or emergency fees upfront.
Tips & guides from GigoPro
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A dead water heater, a flickering light, a leaking dishwasher, a roof that needs replacing — every home eventually needs a professional, and the person you choose decides the pric…
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The Complete Guide to AC Repair Costs
"How much does AC repair cost?" is the most-asked question in home comfort — and the honest answer is genuinely complicated. The price of a repair depends on the type of system, t…
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What locals say about HVAC in Merrimack
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Linda Milot
I called A and C Mechanical after returning from vacation and finding out my central air unit was involved in an electrical strike. Arthur showed up when scheduled. He fixed the central air pretty quickly and very reasonably priced. I had him come back and service my furnace for the fall/winter and he found a bracket that needed to be replaced. Again very happy with the service and pricing.
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Eileen Garvey
Thank you A and C Mechanical for providing PHENOMENAL Service!!! Last winter during the Christmas week (Saturday to be exact) on one of the coldest days of the year our furnace stopped working - No Heat for the entire house! A and C came to our rescue! First off, they answered my call on a Saturday, came out to the house, fixed the furnace, and did NOT charge an astronomical fee !!!!!!! They were friendly, professional and very willing to help us in our time of need. They also gave us some maintenance tips that would prevent this situation from arising again. It was a Fabulous Pre-Holiday Gift!!! THANK YOU A and C!!!!! Eileen Kerwick
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Todd moore
First used A&C a year ago. My furnace failed in January, they came right out and replaced the furnace the next day. The work was done fast, professionally, and well priced compared to other quotes. I have since had them back to looking into upgrading duct work and will be having them do that as well.
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Thomas Lingley
Artie was recommended to me by a friend who is a contractor. I took his advice and had A & C install a completely new heating system. It's been just over 2 years since the installation and it has been smooth sailing ever since. I would not hesitate to use him again.
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Diane Holmes
A & C Mechanical install a mini split system for me on a job in Hollis, NH. They were very professional and worked well with me installing the system into some very tight spaces. Shortly after, my own furnace died and A & C Mechanical replaced it. They did a terrific job. They also handled, with 100% satisfaction, the mfg warranty replacement for a faulty part. I highly recommend A & C Mechanical for their expertise and professionalism! Lou Holmes Holmes Construction
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Kathy M
Artie and Corey far exceeded our expectations! After a large hvac company failed us, Artie and his crew installed a new furnace, and were wonderful to work with. We can’t thank you enough for all you’ve done for us! Hard working, honest, and fair priced! Hard to find great people like this now a days!!
